Buildbot crash output: fuzz-2021-01-18-1999268.pcap

Problems have been found with the following capture file:

https://www.wireshark.org/download/automated/captures/fuzz-2021-01-18-1999268.pcap

stderr:

Input file: /home/wireshark/menagerie/menagerie/15812-task.pcap

Build host information:
Linux build1 5.4.0-60-generic #67-Ubuntu SMP Tue Jan 5 18:31:36 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.1 LTS
Release:	20.04
Codename:	focal

Buildbot information:
BUILDBOT_REPOSITORY=git@gitlab.com:wireshark/wireshark.git
BUILDBOT_WORKERNAME=clang-code-analysis
BUILDBOT_URL=https://buildbot.wireshark.org/wireshark-master/
BUILDBOT_BUILDNUMBER=5371
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_GOT_REVISION=85a793892520c0f2152bc26c1287236762c69e85

Return value:  0

Dissector bug:  0

Valgrind error count:  1



Latest (but not necessarily the problem) commit:
85a7938925 Qt+tools: Fix most of our lupdate warnings.


Command and args: ./tools/valgrind-wireshark.sh -b /home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin 
==2675209== Memcheck, a memory error detector
==2675209== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==2675209== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==2675209== Command: /home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin/tshark -nr /fuzz/buildbot/clangcodeanalysis/valgrind-fuzz/fuzz-2021-01-18-1999268.pcap
==2675209==
==2675209== Warning: set address range perms: large range [0x59c9d044, 0x159c9d040) (undefined)

no debug trace